____________________
H2
+
O2
?
____________________
H20
N2
+
____________________
H2
?
____________________
NH3
____________________
HCl
+
MnO2
?
MnCl2
+
____________________
H2O
+
Cl2
+
____________________
KCl
+
C
H2SO4
+
____________________
NaCl
?
Na2SO4
+
____________________
HCl
____________________
FeS2
?
Fe3S4
+
S2
____________________
H2SO4
+
C
?
____________________
H2O
+
____________________
SO2
+
CO2
____________________
SO2
+
O2
____________________
SO
3
